Foubths to james w



(No Model.)

K. HYDE.

WOOD RIM PULLEY.

Patented'Dec. 9; 1884.

ire ares KIRKLEY HYDE, OF LOWVELL,

MASSACHUSETTS, ASSIGNOB OF THREE- FOURTHS TO JAMES W. BENNETT, ALBERT M. MOORE, AND FREDERICK TAYLOR, ALL OF SAME PLACE.

SPECIFICATION forming part of Letters Patent No. 309,144, dated December 9, 1884.

Application filed May 12, 1884.

7Z0 whom, it may concern.-

Be it known that I, KIRKLEY HYDE, a citizen of the United States, residing at Lowell, in the county ofMiddleseX and Commonwealth of Massachusetts, have invented certain new and useful Improvements in WVood-Rim Pulleys, of which the following is a specification.

My invention relates to that class of wood (No model.)

together, and the sides of the Vshaped notch 5 are pressed down upon the wedgeshaped ledge, crowding the felly endwise back against the next adjacent arm and securing the felly firmly in place. The nut c is prevented from rim pulleys in which the ends of the middle or foundation fellies are notched to receive ledges formed on the outer edges of the spiderarms; and it consists in means whereby the ends of said foundationd'ellies may be tightened on said ledges.

In the accompanying drawings, Figure 1 is side elevation of such a pulley, apart of the outer fellies thereof being broken away to show the ledges at the ends of the arms, and the notches and slot in the ends of the foundation-fellies, and the tightening bolts and nuts; I i g. 2, a central cross-section of the same on line 00 w in Fig. 1.

A is a metallic spider consisting of the hub a and the arms a, of any usual construction, except that the outer ends of the arms are each provided on each edge thereof with a wedge-shaped ledge, a The middle or foundation fellies, B, are each provided at each end with a notch, 1), adapted to receive one of the wedgeshaped ledges (1?, and are otherwise shaped to reach over the outside of the end of the arm and meet the adjacent foundationfelly at the middle of said arm, as shown in another application filed herewith. One end of each felly is also slotted at b longitudinally back from the deepest part of the notch for a sufficient distance to allow the sides of the slot to be sprung toward each other, and a screw-bolt, C, is passed radially through the slotted end of the felly at right angles to the loosening by a cheek-nut, c, which is turned up on the bolt C against the nut c.

The telly-tightening device above described avoids the necessity of fitting the foundationfellies so accurately to their places between the arms, and of crowding them to their 5 5 places by the use of a powerful press. The middle fellies form a foundation, to which the outer fellies are secured by nails and glue in the usual manner, and the rim thus formed is then turned true.

I claim as my invention 1. The combination of the metallic spider provided with wedge-shaped ledges at the outer ends of its arms, and the foundationfellies provided .with notches and with longitudinal slots leading into said notches, and means, substantially as described, of drawing the sides of said slots toward each other and of closing the sides of said notches upon said ledges, as and for the purpose specified.

2. The combination of the metallic spider provided with wedge-shaped ledges at the outer ends of its arms, and the foundationfellies provided with notches and with longitudinal slots leading into said notches, and bolts passed through the slotted ends of said fellies at right angles to the slots and the nuts, as and for the purpose specified.

KIRKLEY HYDE.

Vitnesses:

ALBERT M. MOORE, EDWARD XV. THOMPSON.

slot, the head of the bolt being let into the 

